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Significant Accounting Policies | 3 Months Ended
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Mar. 31, 2022
Accounting Policies [Abstract] |
Significant Accounting Policies | Significant Accounting Policies The information presented on Stock Incentive Plans updates our Significant Accounting Policies information presented in our 2021 Form 10-K to reflect the effect of modifications made to Cruise stock incentive awards during the three months ended March 31, 2022. Refer to Note 18 to our condensed consolidated financial statements for additional information on the modifications made. Stock Incentive Plans Our stock incentive plans include Restricted Stock Units (RSUs), Restricted Stock Awards (RSAs), Performance Stock Units (PSUs), stock options and awards that may be settled in our stock, the stock of our subsidiaries or in cash. We measure and record compensation expense based on the fair value of GM or Cruise's common stock on the date of grant for RSUs, RSAs and PSUs and the grant date fair value, determined utilizing a lattice model or the Black-Scholes formula for stock options and PSUs. We record compensation cost for service-based RSUs, RSAs, PSUs and service-based stock options on a straight-line basis over the entire vesting period, or for retirement eligible employees over the requisite service period. In March 2022, all outstanding RSUs that settle in Cruise’s common stock were modified to remove the liquidity vesting condition. Prospectively, RSUs that will settle in Cruise’s common stock will solely vest upon satisfaction of a service condition. Compensation cost for awards that do not have an established accounting grant date, but for which the service inception date has been established, or are settled in cash is based generally on the fair value of GM or Cruise's common stock at the end of each reporting period. Compensation cost is also recorded on stock issued to settle awards based on the fair value of Cruise's common stock until such time that the stock has been issued for more than six months. We use the graded vesting method to record compensation cost for stock options with market conditions over the lesser of the vesting period or the time period an employee becomes eligible to retain the award at retirement.

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- Definition The entire disclosure for all significant accounting policies of the reporting entity. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=123372394&loc=d3e18726-107790 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -URI http://asc.fasb.org/topic&trid=2122369 + Details
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